Support Put* fields for slices of configuration types (#57)

Implements aws-controllers-k8s/community#914

Description of changes:
Uses the new custom fields code-generator PR (aws-controllers-k8s/code-generator#222) to create lists of configuration types. At runtime each of these configurations is put individually (mapped using their ID field) onto the bucket. For each reconciliation, we describe the configurations using a `List*` operation and determine the delta for each configuration using a generated `compare*` method in the `sdk.go`. The configuration elements are individually created, deleted, updated or no-op'd depending on the diff. 

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

apis/v1alpha1/ack-generate-metadata.yaml

@@ -1,13 +1,13 @@
 ack_generate_info:
-  build_date: "2021-10-14T18:50:30Z"
-  build_hash: f4166ae9942034b0552f244685515eef5a92dc25
+  build_date: "2021-10-27T19:39:24Z"
+  build_hash: 6cfd5d8443975a287535dc27424206ac133ebb24
   go_version: go1.17.1
   version: v0.15.1
-api_directory_checksum: e1236617364bb9947bcbfbeb21ce75841b5407f3
+api_directory_checksum: 5157c106fef6bc423adba5eaf17c55de26b36d1e
 api_version: v1alpha1
 aws_sdk_go_version: v1.37.10
 generator_config_info:
-  file_checksum: 45772c7b934f89394b89fe6214164cd8fe76a59e
+  file_checksum: 6a5e4faafc21f5c309ef5219f784fa8228d01744
   original_file_name: generator.yaml
 last_modification:
   reason: API generation

apis/v1alpha1/generator.yaml

@@ -21,10 +21,9 @@ resources:
         from:
           operation: PutBucketAccelerateConfiguration
           path: AccelerateConfiguration
-      # AnalyticsConfiguration:
-      #   from:
-      #     operation: PutBucketAnalyticsConfiguration
-      #     path: AnalyticsConfiguration # Double check about ID
+      Analytics:
+        custom_field:
+          list_of: AnalyticsConfiguration
       CORS:
         from:
           operation: PutBucketCors
@@ -33,14 +32,12 @@ resources:
         from:
           operation: PutBucketEncryption
           path: ServerSideEncryptionConfiguration
-      # IntelligentTieringConfiguration:
-      #   from:
-      #     operation: PutBucketIntelligentTieringConfiguration
-      #     path: IntelligentTieringConfiguration # Double check about ID
-      # InventoryConfiguration:
-      #   from:
-      #     operation: PutBucketInventoryConfiguration
-      #     path: InventoryConfiguration # Double check about ID
+      IntelligentTiering:
+        custom_field:
+          list_of: IntelligentTieringConfiguration
+      Inventory:
+        custom_field:
+          list_of: InventoryConfiguration
       Lifecycle:
         from:
           operation: PutBucketLifecycleConfiguration
@@ -49,10 +46,9 @@ resources:
         from:
           operation: PutBucketLogging
           path: BucketLoggingStatus
-      # MetricsConfiguration:
-      #   from:
-      #     operation: PutBucketMetricsConfiguration
-      #     path: MetricsConfiguration # Double check about ID
+      Metrics:
+        custom_field:
+          list_of: MetricsConfiguration
       Notification:
         from:
           operation: PutBucketNotificationConfiguration